The elusive Fido (an infrequent poster here, and author of a rather comprehensive brush blog) rates the BK8 very highly indeed, and I always defer to him when it comes to matters bristly. I have the smaller and floppier BK4 which I like a lot, but apparently the BK8 knocks spots off it, so it looks like you're going to be pleased with your new acquisition.
Here's Fido's comments, and I'd urge you to have a look at the whole blog: it's a cautionary tale about brush acquisition disorder. :)
Fido's Shaving Brush Blog: Kent BK8 Silvertip